Features: 1. High-efficiency and energy-saving: adopting DC motor, strong wind power and quiet energy-saving, stable operation for a long time, the lowest speed power consumption is only 1.5w. 2. Power supply: The fan uses a standard USB charging cable, supports adapters, mobile power supplies, computers, etc. for charging. 3. No noise: the fan will bring you quiet and cool, the three-blade design has less noise, and the low wind speed can bring you quiet and comfortable. 4. Third gear wind speed: The convenient fan can adjust the third gear wind speed, the first gear is soft wind, the second gear is cool breeze, and the third gear is strong wind. 5. Long battery life: The convenient fan has a built-in 2000 mAh battery, which can last for 8 hours. Description: The fan has three levels of wind, quiet operation, long-lasting battery life, and supports 360 degrees rotation. Specifications: Size: 135*135*59mm Wind speed gear: three gears (weak-medium-strong) Battery capacity: 2000mAh / 3.7V Interface: Micro-USB Input: 5V-1.0A Rotation angle: 360 degrees Shell material: material Life time: 8h Decibel: 25db Package Included: 1 * Desktop Fan Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.